可空字段上的Cosmos DB IQueryable

using Microsoft.Azure.Cosmos;
using System;
using System.Linq;

public class Product
{
    public string Id { get; set; }
    public string Name { get; set; }
    public int? Price { get; set; }
}

public class Program
{
    private static CosmosClient cosmosClient = new CosmosClient("your-endpoint", "your-key");
    private static Database database = cosmosClient.GetDatabase("your-database-id");
    private static Container container = database.GetContainer("your-container-id");

    public static void Main(string[] args)
    {
        var query = container.GetItemLinqQueryable<Product>()
            .Where(p => p.Price.HasValue && p.Price.Value > 100);

        foreach (var product in query.ToList())
        {
            Console.WriteLine($"Product: {product.Name}, Price: {product.Price}");
        }
    }
}